In a large bowl, toss chopped romaine lettuce with 1/2 cup of ranch dressing until evenly coated.
In a separate bowl, combine cubed chicken with BBQ sauce, making sure the chicken is well coated.
Arrange the BBQ chicken over the lettuce base.
Evenly distribute corn, black beans, tomatoes, jicama, shredded cheese, diced avocado, green onions, and tortilla strips over the salad.
Drizzle the remaining 1/4 cup of ranch dressing over the top.
Serve immediately and enjoy your fresh, flavorful BBQ chicken salad!